Hello, I'm bringing a rather unconventional report (no in-game report). I've observed a few lobbies in high elo ranked (2400+) that always has someone spamming racist pre-game lobby names and changing them quickly so that it would flood the chat. The problem with this is that it's almost impossible to determine who the player is, because before the game would start they would change their names. One thing to note is that however, due to the design of picking a name, you can pinpoint who the spammer was down to a certain few names, because he has to change his name before the game starts. This means that after his racist name change spam is over, one of the players that joined AFTER the racist spam must be the spammer.
I've taken it upon myself to take a few pictures of pre-game names and post-game names and try to match them up to see if there's a common player between them. The album below shows that a common player (matheusbanido) is likely responsible for the spam.
https://imgur.com/a/AwlDNoV
I've split the album into three games with two images each. The first image is the pre-game lobby, and the second is the post-game lobby.
In the very first image, you can see a spammer (kill D ______) [he spammed a lot more before btw, but you can't see] and then a few names joining after him. This means that the spammer must be Beijing Nia, plastic surgeon, ..., etc.. By following this logic throughout all three images, you can see the common player between this is mastheusbanido.
I'd like you to please check the pre-game chat logs and ban him as I wasn't sure if this appeared in trial reports (pretty sure it doesn't). Please let me know if you require additional information.